starter issues

Discussion in 'GMC Truck Forum' started by Mudman88, Aug 11, 2009.

  1. Mudman88

    Mudman88 Senior Member

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    I had to install a new starter yesterday. I bought a reconditioned Duralast that has a rating of 99%like new.
    Anyway, I installed it last night and started it up, and there was a loud whining coming from it.So i read the directions, and it said if this occurs install a full shim across both bolt holes, and try again.SO i did, same sound.Installed another shim, same thing, last shim, same thing.
    Then i read that it said for minor adjustments install 1 half shim on the onboard bolt,the one towards the motor. But it said do not install more than 4 on one bolt.So i threw 3 on one bolt, same sound, put the last one on, same sound.
    Is it possible that this starter is just going to make that sound?If not, what damage is being done if I just leave it this way?
     
  2. Mudman88

    Mudman88 Senior Member

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    by the way, my truck is an 89 GMC K1500 with the 350 5.7 liter.
     
  3. bradrhale

    bradrhale Senior Member

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    if it is a whine, i would say bearing. had a 96 with a whine but couldnt justify changing it out because the alt worked great. kid ended up buying and putting on a new alt. that cured the problem.
     
  4. Mudman88

    Mudman88 Senior Member

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    a bearing inside the starter?Thats where the whine is coming from.
     
  5. bradrhale

    bradrhale Senior Member

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    sorry, i was thinking alternator for some reason. let me go get a cup of coffee. my brain just went into shutdown mode. is the starter actually working right and just making the noise, or what??
     
  6. Wyley87

    Wyley87 Senior Member

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    hey mudman you get that trans figured out? as for your starter issue the gear on it might not be disengaging all the way
     
  7. Mudman88

    Mudman88 Senior Member

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    yes it starts it automatically then when i let go of the key it sounds like it winding down...
    Transmission. Funny you should mention that. It needs to be rebuilt, and a shop in town is doing it. Going to cost around 1500 for all the work and stuff, but my girlfriend actually wants to drive it, so yeah.
     
  8. Wyley87

    Wyley87 Senior Member

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    well to be honest with you id have to hear it to give you a definitive answer
     
  9. Mudman88

    Mudman88 Senior Member

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    ok..Right when i turn the key it starts the truck, no grinding or anything. But as soon as i let off the key it goes "PHEEEEEEEEEEEEEEEEWWWWWW" hahah..thats the best i can do.
    I am thinking that if there is no grinding or anything that it should be ok, but Ive never done a starter before.
     
  10. stumpuller454

    stumpuller454 Well-Known Member

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    if a start is noisy during cranking remove shims or decrase the backlash (if required file the starter) if the starter makes a zing or funy noise right after the engine fires, install a shim, the reason of the noise it not enough back lash, and the starter drive gear is being held on the flywheel too long.
     

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